NovaKitFox If you have a Digital or Mini DV camcorder that has Video in ability. I would dump it to that first.
NovaKitFox as for the GPU.. as far as i under stand. that won't even be used at all unless the video editing software you use to Render out the Video is Cuda enabled software. then it would use some of the GPU power to encode and render out the final video.
hutlaw2019 Update: It's November 2019 and I had to do the same Analog to Digital capture job again because my storage/backup HDD failed.I was amazed the original Hi8 tapes were still good recorded in mid 1990's. So I got another Hi8 camera to play into the same PCI-510 Pinnacle board but used Studio 20 (instead of 15) and a better computer (OptiPlex MT-780 w/Q9650, Quadro 600 gpu and 8gd3).It worked far better/faster than first time using only a C2D cpu, GT-210 gpu and 4gd2.